A version of this story appears in the February 2017 issue of National Geographic magazine. Citrus, in many ways, stands alone. So many cultivated species have come from so few primary ancestors.

Oranges are the result of thousands of years of human selection All citrus fruits can trace their roots to the southeast foothills of the Himalayas, according to DNA evidence. The first citrus ...

Beyond the ladder-like structure described above, another key characteristic of double-stranded DNA is its unique three-dimensional shape. The first photographic evidence of this shape was ...

In fact, each gene in cellular DNA contains the code for a unique protein structure. Not only are these proteins assembled with different amino acid sequences, but they also are held together by ...

Citrus crops across the Sunshine State are in a world of hurt, as back-to-back hurricanes and one of the most serious plant diseases plague oranges and their prices. "Milton came across the center ...

By using three broad types of measurements—working capital, asset performance, and capital structure—you may evaluate the strength of a company's balance sheet, and thus, its investment quality.

Structure is the order the different sections of a song or piece of music are played in. BOY 2: Hey, I’ve got some new lyrics. “Our tempos steady like a well times yo-yo.” GIRL 3 ...

How to create a story structure. Every story needs a plot: an exciting series of events. Most stories follow a simple structure that is called the story mountain, but obviously all stories don't ...

From the zesty citrus notes of Cascade to the earthy bitterness of Magnum, the variety of hops allows brewers to create an endless array of flavors. When growing hops, there are certain things to keep ...

Capital structure describes the mix of a firm's long-term capital—a mix of debt and equity—that it uses to fund its ongoing operations and future growth. A company's capital structure is ...

Academic essays usually follow an established organisational structure that helps the writer to express their ideas clearly and the reader to follow the thread of their argument. An essay's structure ...

A mandatory evacuation has been ordered for all residents in Zone A and all Citrus County residents in campers, mobile homes, manufactured homes, or any structure not capable of withstanding ...